/**
* vkBeautify - javascript plugin to pretty-print or minify text in XML, JSON, CSS and SQL formats.
*  
* Version - 0.99.00.beta 
* Copyright (c) 2012 Vadim Kiryukhin
* vkiryukhin @ gmail.com
* http://www.eslinstructor.net/vkbeautify/
* 
* Dual licensed under the MIT and GPL licenses:
*   http://www.opensource.org/licenses/mit-license.php
*   http://www.gnu.org/licenses/gpl.html
*
*   Pretty print
*
*        vkbeautify.xml(text [,indent_pattern]);
*        vkbeautify.json(text [,indent_pattern]);
*        vkbeautify.css(text [,indent_pattern]);
*        vkbeautify.sql(text [,indent_pattern]);
*
*        @text - String; text to beatufy;
*        @indent_pattern - Integer | String;
*                Integer:  number of white spaces;
*                String:   character string to visualize indentation ( can also be a set of white spaces )
*   Minify
*
*        vkbeautify.xmlmin(text [,preserve_comments]);
*        vkbeautify.jsonmin(text);
*        vkbeautify.cssmin(text [,preserve_comments]);
*        vkbeautify.sqlmin(text);
*
*        @text - String; text to minify;
*        @preserve_comments - Bool; [optional];
*                Set this flag to true to prevent removing comments from @text ( minxml and mincss functions only. )
*
*   Examples:
*        vkbeautify.xml(text); // pretty print XML
*        vkbeautify.json(text, 4 ); // pretty print JSON
*        vkbeautify.css(text, '. . . .'); // pretty print CSS
*        vkbeautify.sql(text, '----'); // pretty print SQL
*
*        vkbeautify.xmlmin(text, true);// minify XML, preserve comments
*        vkbeautify.jsonmin(text);// minify JSON
*        vkbeautify.cssmin(text);// minify CSS, remove comments ( default )
*        vkbeautify.sqlmin(text);// minify SQL
*
*/

(function () {

    function createShiftArr(step) {

        var space = '    ';

        if (isNaN(parseInt(step))) {  // argument is string
            space = step;
        } else { // argument is integer
            switch (step) {
                case 1: space = ' '; break;
                case 2: space = '  '; break;
                case 3: space = '   '; break;
                case 4: space = '    '; break;
                case 5: space = '     '; break;
                case 6: space = '      '; break;
                case 7: space = '       '; break;
                case 8: space = '        '; break;
                case 9: space = '         '; break;
                case 10: space = '          '; break;
                case 11: space = '           '; break;
                case 12: space = '            '; break;
            }
        }

        var shift = ['\n']; // array of shifts
        for (ix = 0; ix < 100; ix++) {
            shift.push(shift[ix] + space);
        }
        return shift;
    }

    function vkbeautify() {
        this.step = '    '; // 4 spaces
        this.shift = createShiftArr(this.step);
    };

    vkbeautify.prototype.xml = function (text, step) {

        var ar = text.replace(/>\s{0,}</g, "><")
                     .replace(/</g, "~::~<")
                     .replace(/\s*xmlns\:/g, "~::~xmlns:")
                     .replace(/\s*xmlns\=/g, "~::~xmlns=")
                     .split('~::~'),
            len = ar.length,
            inComment = false,
            deep = 0,
            str = '',
            ix = 0,
            shift = step ? createShiftArr(step) : this.shift;

        for (ix = 0; ix < len; ix++) {
            // start comment or <![CDATA[...]]> or <!DOCTYPE //
            if (ar[ix].search(/<!/) > -1) {
                str += shift[deep] + ar[ix];
                inComment = true;
                // end comment  or <![CDATA[...]]> //
                if (ar[ix].search(/-->/) > -1 || ar[ix].search(/\]>/) > -1 || ar[ix].search(/!DOCTYPE/) > -1) {
                    inComment = false;
                }
            } else
                // end comment  or <![CDATA[...]]> //
                if (ar[ix].search(/-->/) > -1 || ar[ix].search(/\]>/) > -1) {
                    str += ar[ix];
                    inComment = false;
                } else
                    // <elm></elm> //
                    if (/^<\w/.exec(ar[ix - 1]) && /^<\/\w/.exec(ar[ix]) &&
                        /^<[\w:\-\.\,]+/.exec(ar[ix - 1]) == /^<\/[\w:\-\.\,]+/.exec(ar[ix])[0].replace('/', '')) {
                        str += ar[ix];
                        if (!inComment) deep--;
                    } else
                        // <elm> //
                        if (ar[ix].search(/<\w/) > -1 && ar[ix].search(/<\//) == -1 && ar[ix].search(/\/>/) == -1) {
                            str = !inComment ? str += shift[deep++] + ar[ix] : str += ar[ix];
                        } else
                            // <elm>...</elm> //
                            if (ar[ix].search(/<\w/) > -1 && ar[ix].search(/<\//) > -1) {
                                str = !inComment ? str += shift[deep] + ar[ix] : str += ar[ix];
                            } else
                                // </elm> //
                                if (ar[ix].search(/<\//) > -1) {
                                    str = !inComment ? str += shift[--deep] + ar[ix] : str += ar[ix];
                                } else
                                    // <elm/> //
                                    if (ar[ix].search(/\/>/) > -1) {
                                        str = !inComment ? str += shift[deep] + ar[ix] : str += ar[ix];
                                    } else
                                        // <? xml ... ?> //
                                        if (ar[ix].search(/<\?/) > -1) {
                                            str += shift[deep] + ar[ix];
                                        } else
                                            // xmlns //
                                            if (ar[ix].search(/xmlns\:/) > -1 || ar[ix].search(/xmlns\=/) > -1) {
                                                str += shift[deep] + ar[ix];
                                            }

                                            else {
                                                str += ar[ix];
                                            }
        }

        return (str[0] == '\n') ? str.slice(1) : str;
    }

    vkbeautify.prototype.json = function (text, step) {

        var step = step ? step : this.step;

        if (typeof JSON === 'undefined') return text;

        if (typeof text === "string") return JSON.stringify(JSON.parse(text), null, step);
        if (typeof text === "object") return JSON.stringify(text, null, step);

        return text; // text is not string nor object
    }

    vkbeautify.prototype.css = function (text, step) {

        var ar = text.replace(/\s{1,}/g, ' ')
                    .replace(/\{/g, "{~::~")
                    .replace(/\}/g, "~::~}~::~")
                    .replace(/\;/g, ";~::~")
                    .replace(/\/\*/g, "~::~/*")
                    .replace(/\*\//g, "*/~::~")
                    .replace(/~::~\s{0,}~::~/g, "~::~")
                    .split('~::~'),
            len = ar.length,
            deep = 0,
            str = '',
            ix = 0,
            shift = step ? createShiftArr(step) : this.shift;

        for (ix = 0; ix < len; ix++) {

            if (/\{/.exec(ar[ix])) {
                str += shift[deep++] + ar[ix];
            } else
                if (/\}/.exec(ar[ix])) {
                    str += shift[--deep] + ar[ix];
                } else
                    if (/\*\\/.exec(ar[ix])) {
                        str += shift[deep] + ar[ix];
                    }
                    else {
                        str += shift[deep] + ar[ix];
                    }
        }
        return str.replace(/^\n{1,}/, '');
    }

    //----------------------------------------------------------------------------

    function isSubquery(str, parenthesisLevel) {
        return parenthesisLevel - (str.replace(/\(/g, '').length - str.replace(/\)/g, '').length)
    }

    function split_sql(str, tab) {

        return str.replace(/\s{1,}/g, " ")

                    .replace(/ AND /ig, "~::~" + tab + tab + "AND ")
                    .replace(/ BETWEEN /ig, "~::~" + tab + "BETWEEN ")
                    .replace(/ CASE /ig, "~::~" + tab + "CASE ")
                    .replace(/ ELSE /ig, "~::~" + tab + "ELSE ")
                    .replace(/ END /ig, "~::~" + tab + "END ")
                    .replace(/ FROM /ig, "~::~FROM ")
                    .replace(/ GROUP\s{1,}BY/ig, "~::~GROUP BY ")
                    .replace(/ HAVING /ig, "~::~HAVING ")
                    //.replace(/ SET /ig," SET~::~")
                    .replace(/ IN /ig, " IN ")

                    .replace(/ JOIN /ig, "~::~JOIN ")
                    .replace(/ CROSS~::~{1,}JOIN /ig, "~::~CROSS JOIN ")
                    .replace(/ INNER~::~{1,}JOIN /ig, "~::~INNER JOIN ")
                    .replace(/ LEFT~::~{1,}JOIN /ig, "~::~LEFT JOIN ")
                    .replace(/ RIGHT~::~{1,}JOIN /ig, "~::~RIGHT JOIN ")

                    .replace(/ ON /ig, "~::~" + tab + "ON ")
                    .replace(/ OR /ig, "~::~" + tab + tab + "OR ")
                    .replace(/ ORDER\s{1,}BY/ig, "~::~ORDER BY ")
                    .replace(/ OVER /ig, "~::~" + tab + "OVER ")

                    .replace(/\(\s{0,}SELECT /ig, "~::~(SELECT ")
                    .replace(/\)\s{0,}SELECT /ig, ")~::~SELECT ")

                    .replace(/ THEN /ig, " THEN~::~" + tab + "")
                    .replace(/ UNION /ig, "~::~UNION~::~")
                    .replace(/ USING /ig, "~::~USING ")
                    .replace(/ WHEN /ig, "~::~" + tab + "WHEN ")
                    .replace(/ WHERE /ig, "~::~WHERE ")
                    .replace(/ WITH /ig, "~::~WITH ")

                    //.replace(/\,\s{0,}\(/ig,",~::~( ")
                    //.replace(/\,/ig,",~::~"+tab+tab+"")

                    .replace(/ ALL /ig, " ALL ")
                    .replace(/ AS /ig, " AS ")
                    .replace(/ ASC /ig, " ASC ")
                    .replace(/ DESC /ig, " DESC ")
                    .replace(/ DISTINCT /ig, " DISTINCT ")
                    .replace(/ EXISTS /ig, " EXISTS ")
                    .replace(/ NOT /ig, " NOT ")
                    .replace(/ NULL /ig, " NULL ")
                    .replace(/ LIKE /ig, " LIKE ")
                    .replace(/\s{0,}SELECT /ig, "SELECT ")
                    .replace(/\s{0,}UPDATE /ig, "UPDATE ")
                    .replace(/ SET /ig, " SET ")

                    .replace(/~::~{1,}/g, "~::~")
                    .split('~::~');
    }

    vkbeautify.prototype.sql = function (text, step) {

        var ar_by_quote = text.replace(/\s{1,}/g, " ")
                                .replace(/\'/ig, "~::~\'")
                                .split('~::~'),
            len = ar_by_quote.length,
            ar = [],
            deep = 0,
            tab = this.step,//+this.step,
            inComment = true,
            inQuote = false,
            parenthesisLevel = 0,
            str = '',
            ix = 0,
            shift = step ? createShiftArr(step) : this.shift;;

        for (ix = 0; ix < len; ix++) {
            if (ix % 2) {
                ar = ar.concat(ar_by_quote[ix]);
            } else {
                ar = ar.concat(split_sql(ar_by_quote[ix], tab));
            }
        }

        len = ar.length;
        for (ix = 0; ix < len; ix++) {

            parenthesisLevel = isSubquery(ar[ix], parenthesisLevel);

            if (/\s{0,}\s{0,}SELECT\s{0,}/.exec(ar[ix])) {
                ar[ix] = ar[ix].replace(/\,/g, ",\n" + tab + tab + "")
            }

            if (/\s{0,}\s{0,}SET\s{0,}/.exec(ar[ix])) {
                ar[ix] = ar[ix].replace(/\,/g, ",\n" + tab + tab + "")
            }

            if (/\s{0,}\(\s{0,}SELECT\s{0,}/.exec(ar[ix])) {
                deep++;
                str += shift[deep] + ar[ix];
            } else
                if (/\'/.exec(ar[ix])) {
                    if (parenthesisLevel < 1 && deep) {
                        deep--;
                    }
                    str += ar[ix];
                }
                else {
                    str += shift[deep] + ar[ix];
                    if (parenthesisLevel < 1 && deep) {
                        deep--;
                    }
                }
            var junk = 0;
        }

        str = str.replace(/^\n{1,}/, '').replace(/\n{1,}/g, "\n");
        return str;
    }


    vkbeautify.prototype.xmlmin = function (text, preserveComments) {

        var str = preserveComments ? text
                                   : text.replace(/\<![ \r\n\t]*(--([^\-]|[\r\n]|-[^\-])*--[ \r\n\t]*)\>/g, "")
                                         .replace(/[ \r\n\t]{1,}xmlns/g, ' xmlns');
        return str.replace(/>\s{0,}</g, "><");
    }

    vkbeautify.prototype.jsonmin = function (text) {

        if (typeof JSON === 'undefined') return text;

        return JSON.stringify(JSON.parse(text), null, 0);

    }

    vkbeautify.prototype.cssmin = function (text, preserveComments) {

        var str = preserveComments ? text
                                   : text.replace(/\/\*([^*]|[\r\n]|(\*+([^*/]|[\r\n])))*\*+\//g, "");

        return str.replace(/\s{1,}/g, ' ')
                  .replace(/\{\s{1,}/g, "{")
                  .replace(/\}\s{1,}/g, "}")
                  .replace(/\;\s{1,}/g, ";")
                  .replace(/\/\*\s{1,}/g, "/*")
                  .replace(/\*\/\s{1,}/g, "*/");
    }

    vkbeautify.prototype.sqlmin = function (text) {
        return text.replace(/\s{1,}/g, " ").replace(/\s{1,}\(/, "(").replace(/\s{1,}\)/, ")");
    }

    window.vkbeautify = new vkbeautify();

})();

